Great pics. Thanks a lot Dragon. Now, I only have one question. Is this going to wear out the Relay faster or maybe cause some problems, like draining my battery when the car is off? I know stupid questions, but i just need to make sure https://www.nopistons.com/forums/pub...IR#>/smile.png





Amel

Thanks just did mine too!!!! https://www.nopistons.com/forums/pub...IR#>/bigok.gif

It won't wear out the relay faster or make the pump stay on with the car off. You may see your gas mileage go down however.

That's ok, I'm used to that. I do drive an FD https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...1047683785.gif

It'd be hard for mine to go any lower too! Good info Thanks!

gas milage won't go down if you retune the bottom end a little in the normal driving area's due to a little more fuel being present... It also makes tunning easier dut to there being a constant volume of fuel there that is linear vs suddenly having the fuel pump kick from 6v to 12v and having a sudden change in the volume of fuel present in the fuel rail.. I kind of think that the change over has a little to do with the injector change over problems people have as well because they both happen around the same time..

also, you don't need to worry about the relay wearing out because you've effectivly made it not a relay anymore.. https://www.nopistons.com/forums/pub...#>/biggrin.png

would this fix a problem relating to why no fuel is being sent to my motor so that it will start? No fuel going to my motor is the reason why mine won't start, and that's the only reason. Could it be this?

Great wriet up, I am about to install a single walbro and was going to run 12v via a seperate relay, but this looks a lot easier.



Thanks

Wiring up relays isnt hard either.



https://www.nopistons.com/forums/index.php?...=36913&hl=relay



follow that...

If it's not getting fuel now at startup, and running it at 12V fixes it.. I'd imagine your pump is letting go. I wouldn't recommend using this as a method to aid a failing pump, however it could help you determine if your pump is failing..

I have been noticing some rather intrusive whine from my Walbro.. Is this common?

Mine whine all the time. If the pitch has changed and sounds different than what it ussually does, you may have a clogged fuel filter, or the filter in the tank on the pump may have crap in it.

Priceless info guys https://www.nopistons.com/forums/pub...1047683894.gif



- I'm planning the dual Walbro install next week. https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...#>/biggrin.png

Doin a walbro instal in the coming weeks too, thanks for the great info in this forum in general! Amazing there was no flame war during that entire post... you can probably tell where I usualy am.



Bob

I second that motion. https://www.nopistons.com/forums/pub...1047683894.gif





I'll plan a dual Walbro setup once I officially get my FD. https://www.nopistons.com/forums/pub...IR#>/bigok.gif

How do I wire my fuel pump up for constant 12v?



Right now I just have it wired up through my haltech.

when I picked a fuel pump, Rotary performance says they recommend against walbro pumps, they said they crap out b4 others so I ended up getting a denso 255lph, for what application, I do not know.

[quote name='ambassador_josh' date='Feb 9 2005, 07:24 PM']when I picked a fuel pump, Rotary performance says they recommend against walbro pumps, they said they crap out b4 others so I ended up getting a denso 255lph, for what application, I do not know.


[/quote]





They say that becuase they want to sell you their denso supra TT pump with the part number removed...

just looked at my fuel pump relay and it didnt look like the one in the picture. i did however force the connection to make constant contact with a toothpick. is that OK?

so are you geting more fuel pressure now?

umm, ill check later. i dunno if teh FPR is set for 40psi max or not.

umm, howd i check?

check your fuel pressure... lol



the regulator is set with reguards to how much your fuel pump is pumping, if you are getting more flow now, your fuel pressure will go up from whatever is set on your regulator

i see a couple more pounds at idle on the gauge.

somebody needs to retune then...

lol. mos def. it was running super duper rich.

awsome thread!!!! thanks for the help... installing dual walbro shortly...with the lines as dragon suggested!

will running a single pump at full voltage cause it to fail prematurely.



Scott